I am under obligation both to Greeks and to barbarians, both to the wise and to the foolish.

For although they knew God, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened.

Claiming to be wise, they became fools,

foolish, faithless, heartless, ruthless.

an instructor of the foolish, a teacher of children, having in the law the embodiment of knowledge and truth—

But I ask, did Israel not understand? First Moses says, “I will make you jealous of those who are not a nation; with a foolish nation I will make you angry.”